The hatred of all against all? Evidence from online community platforms in South Korea.

Background: Over several years of recent efforts to make sense and detect online hate speech, we still know relatively little about how hateful expressions enter online platforms and whether there are patterns and features characterizing the corpus of hateful speech.

Objective: In this research, we introduce a new conceptual framework suitable for better capturing the overall scope and dynamics of the current forms of online hateful speech.

Methods: We adopt several Python-based crawlers to collect a comprehensive data set covering a variety of subjects from a multiplicity of online communities in South Korea.

Promoting Self-Efficacy of Individuals With Autism in Practicing Social Skills in the Workplace Using Virtual Reality and Physiological Sensors: Mixed Methods Study.

Background: Individuals with autism often experience heightened anxiety in workplace environments because of challenges in communication and sensory overload. As these experiences can result in negative self-image, promoting their self-efficacy in the workplace is crucial. Virtual reality (VR) systems have emerged as promising tools for enhancing the self-efficacy of individuals with autism in navigating social scenarios, aiding in the identification of anxiety-inducing situations, and preparing for real-world interactions.

Eyes on me: Investigating the role and influence of eye-tracking data on user modeling in virtual reality.

Research has shown that sensor data generated by a user during a VR experience is closely related to the user's behavior or state, meaning that the VR user can be quantitatively understood and modeled. Eye-tracking as a sensor signal has been studied in prior research, but its usefulness in a VR context has been less examined, and most extant studies have dealt with eye-tracking within a single environment. Our goal is to expand the understanding of the relationship between eye-tracking data and user modeling in VR.

A systematic review on fake news research through the lens of news creation and consumption: Research efforts, challenges, and future directions.

Background: Although fake news creation and consumption are mutually related and can be changed to one another, our review indicates that a significant amount of research has primarily focused on news creation. To mitigate this research gap, we present a comprehensive survey of fake news research, conducted in the fields of computer and social sciences, through the lens of news creation and consumption with internal and external factors.

Methods: We collect 2,277 fake news-related literature searching six primary publishers (ACM, IEEE, arXiv, APA, ELSEVIER, and Wiley) from July to September 2020.

The More, the Better? Improving VR Firefighting Training System with Realistic Firefighter Tools as Controllers.

A virtual reality (VR) controller plays a key role in supporting interactions between users and the virtual environment. This paper investigates the relationship between the user experience and VR control device modality. We developed a VR firefighting training system integrated with four control devices adapted from real firefighting tools.

Disentangling the clinical data chaos: User-centered interface system design for trauma centers.

This paper presents a year-long study of our project, aiming at (1) understanding the work practices of clinical staff in trauma intensive care units (TICUs) at a trauma center, with respect to their usage of clinical data interface systems, and (2) developing and evaluating an intuitive and user-centered clinical data interface system for their TICU environments. Based on a long-term field study in an urban trauma center that involved observation-, interview-, and survey-based studies to understand our target users and their working environment, we designed and implemented MediSenseView as a working prototype. MediSenseView is a clinical-data interface system, which was developed through the identification of three core challenges of existing interface system use in a trauma care unit-device separation, usage inefficiency, and system immobility-from the perspectives of three staff groups in our target environment (i.

Usability inquiry of a gamified behavior change app for increasing physical activity and reducing sedentary behavior in adults with and without autism spectrum disorder.

The purpose of this study was to conduct the first usability inquiry of a gamified, behavior change theory-guided mobile app for increasing physical activity and reducing sedentary behavior in adults with and without autism spectrum disorder (ASD). Eighteen adults with and without ASD participated in a mixed-methods study that consisted of cognitive walkthrough, system usability assessment, and qualitative interviews. The results of the system usability testing indicated satisfactory quality of the system that can be readily applicable to both adults with and without ASD.

PuzzleWalk: A theory-driven iterative design inquiry of a mobile game for promoting physical activity in adults with autism spectrum disorder.

Primary symptoms of adults with autism spectrum disorder (ASD), such as pervasive social deficits in social interaction and communication, cause adults with ASD to adopt a sedentary lifestyle. Meanwhile, gamified and behavioral theory-based interventions have been shown to improve physical activity in a fun and unobtrusive way. In this paper, we describe the iterative design inquiry process of PuzzleWalk, a gamified, physical activity-promoting mobile app designed for adults with ASD.

The Effect of Color Scales on Climate Scientists' Objective and Subjective Performance in Spatial Data Analysis Tasks.

Geographical maps encoded with rainbow color scales are widely used by climate scientists. Despite a plethora of evidence from the visualization and vision sciences literature about the shortcomings of the rainbow color scale, they continue to be preferred over perceptually optimal alternatives. To study and analyze this mismatch between theory and practice, we present a web-based user study that compares the effect of color scales on performance accuracy for climate-modeling tasks.

"Is a picture really worth a thousand words?": A case study on classifying user attributes on Instagram.

Because using social media has become a major part of people's daily lives, many of their personal characteristics are often implicitly or explicitly reflected in the content they share. We present a study of two personal characteristics-age and gender-related to user engagement on Instagram that can be determined through the characterization of images and tags. We demonstrate the strong influence of age and gender on Instagram use in terms of topical and content differences.

Smombie Guardian: We watch for potential obstacles while you are walking and conducting smartphone activities.

With the growing dependence on smartphones for everyday activities, a large number of pedestrians nowadays are constantly fixated on their smartphone screens, and hence are susceptible to walking off pavements or colliding with other pedestrians. Reduced attention and situational awareness can render smartphone-occupied users, or smombies, oblivious to potential risks when using their smartphones while walking or driving. In this paper, we introduce a smartphone application, called Smombie Guardian, that detects obstacles and alerts smombies as they walk while viewing their smartphone screens to prevent potential collisions.

How do you perceive this author? Understanding and modeling authors' communication quality in social media.

In this study, we leverage human evaluations, content analysis, and computational modeling to generate a comprehensive analysis of readers' evaluations of authors' communication quality in social media with respect to four factors: author credibility, interpersonal attraction, communication competence, and intent to interact. We review previous research on the human evaluation process and highlight its limitations in providing sufficient information for readers to assess authors' communication quality. From our analysis of the evaluations of 1,000 Twitter authors' communication quality from 300 human evaluators, we provide empirical evidence of the impact of the characteristics of the reader (demographic, social media experience, and personality), author (profile and social media engagement), and content (linguistic, syntactic, similarity, and sentiment) on the evaluation of an author's communication quality.

Ileal Augmentation Cystoplasty Combined with Ileal Ureter Replacement After Radical Treatment for Cervical Cancer.

Background: This study reviewed the outcomes for patients who underwent simultaneous bladder and ureter reconstructive surgery using the ileum after radical treatment for cervical cancer.

Methods: The medical records of seven patients who underwent augmentation ileocystoplasty with ileal ureter replacement between September 2006 and May 2013 were reviewed. Data on indications for surgery, underlying urologic comorbidities, type of ureteral replacement, postoperative complications, and changes in renal function were obtained.

Effect of Pubovesical Complex Reconstruction During Robot-Assisted Laparoscopic Prostatectomy on the Recovery of Urinary Continence.

Objective: To assess whether pubovesical complex (PVC) reconstruction (termed Kim's stitch) improves urinary continence following robot-assisted laparoscopic prostatectomy (RALP).

Patients And Methods: The cohort consisted of 130 consecutive patients who underwent RALP in a tertiary-care hospital between July 2012 and June 2013. The first 70 patients did not undergo PVC reconstruction with Kim's stitch and formed the control group.

Is intravesical Bacillus Calmette-Guérin therapy superior to chemotherapy for intermediate-risk non-muscle-invasive bladder cancer? An ongoing debate.

The objective of this study was to evaluate the risk of recurrence in patients with intermediate-risk non-muscle-invasive bladder cancer (NMIBC) after intravesical instillation with chemotherapeutic agents or Bacillus Calmette-Guérin (BCG) therapy. A cohort of 746 patients with intermediate-risk NMIBC comprised the study group. The primary outcome was time to first recurrence.

Hand-assisted laparoscopic bladder cuff excision via the same hand port as that used for nephroureterectomy.

Purpose: The aim of this study was to report our technique of hand-assisted laparoscopic bladder cuff excision through the same hand port as that used for nephroureterectomy and evaluate its benefits and short-term oncologic outcomes.

Materials And Methods: We included 67 consecutive patients treated by a single surgeon between June 2011 and November 2014 with hand-assisted laparoscopic bladder cuff excision through the same hand port as that used for nephroureterectomy. We retrospectively analyzed procedure-related clinical data and short-term oncologic outcomes.

Comparison of Hand-Assisted Laparoscopic vs Robot-Assisted Laparoscopic vs Open Partial Nephrectomy in Patients with T1 Renal Masses.

Purpose: To evaluate the validity of hand-assisted laparoscopic partial nephrectomy (HALPN) for small renal masses, patients who underwent HALPN, robot-assisted laparoscopic partial nephrectomy (RALPN), or open partial nephrectomy (OPN) at a single medical institution were compared in terms of perioperative outcomes.

Patients And Methods: In this retrospective cohort study, all 590 consecutive patients who underwent HALPN (n=89), RALPN (n=147), or OPN (n=354) between July 2011 and April 2014 in a single institute were compared in terms of perioperative outcomes, including the mean operative time, warm ischemia time (WIT), length of the hospital stay, change in the estimated glomerulofiltration rate (eGFR), duration of analgesic use, surgical margins, and adverse events. The patient groups were compared by a multivariate regression model, in which adjustments were made for differences in baseline demographic and tumor characteristics.

Complications after polymeric and metallic ureteral stent placements including three types of fistula.

Purpose: To report complications, including three types of fistula, intractable hematuria, and pain, which can develop after polymeric ureteral stent (PUS) or metallic ureteral stent placements and to evaluate the risk factors for these adverse events.

Patients And Methods: We reviewed seven patients referred to our trauma and reconstructive subdivision for complications that presented after placement of a PUS (two patients), double-layered, coated, self-expandable, mesh metallic stent (three patients), Memokath stent (one patient), or Resonance stent (one patient). We retrospectively reviewed their medical records and accessed the predisposing factors, mechanism of injury, diagnosis, and interventional and surgical management.

Obesity and prognosis in muscle-invasive bladder cancer: the continuing controversy.

Objectives: To investigate the association between body mass index and clinicopathological features of bladder cancer, and to assess the prognostic value of body mass index in patients undergoing radical cystectomy for bladder cancer.

Methods: The medical records of 714 patients who underwent radical cystectomy for bladder cancer were reviewed. The association of body mass index at surgery with clinicopathological features was examined, and the prognostic value of body mass index for recurrence-free survival and cancer-specific survival was analyzed using the Kaplan-Meier method and Cox regression models.

How many cases are necessary to develop competence for laparoscopic radical nephrectomy?

Purpose: We evaluated the number of cases necessary to develop competence for performing laparoscopic radical nephrectomy (LRN) by chronologically analyzing the results of 150 cases.

Patients And Methods: 150 patients were included in this study, each of whom had had pure transperitoneal LRNs between March 2003 and February 2008 performed by three surgeons who were all novices in laparoscopic surgery. Each surgeon performed 50 LRNs.

Comparison of urodynamics between ischemic and hemorrhagic stroke patients; can we suggest the category of urinary dysfunction in patients with cerebrovascular accident according to type of stroke?

Aims: The aim of this study is to compare the urodynamic parameters in ischemic and hemorrhagic stroke patients with bladder dysfunction.

Materials And Methods: We retrospectively reviewed medical records such as computed tomography (CT) or magnetic resonance imaging (MRI) and urodynamic study and identified 84 cases among 150 stroke patients underwent urodynamic test due to lower urinary tract symptoms (LUTS) from June 2003 to May 2008. Exclusion criteria are diabetes mellitus (DM) cystopathy, previous pelvic surgery, spinal cord injury, benign prostate hyperplasia (BPH), and other neurologic etiology.

Efficacy of the sonolith vision lithotripter according to the electrode lifespan: an in vitro study.

Background And Purpose: Electrodes used by the Sonolith Vision lithotripter have a specified lifespan, and the manufacturer recommends replacing the electrode every 35,000 shocks. To evaluate the efficacy of extracorporeal shockwave lithotripsy (SWL) as it relates to electrode lifespan, and establish standard treatment results, we performed an in vitro study.

Materials And Methods: From August to October 2005, 12 sessions of shock testing were performed by a Sonolith Vision lithotripter using four test stones per month.